Meet the IPI Team

Here at IPI, we work hard to provide the best training possible to mental health providers just like you so that you can help your clients/patients achieve a true state of wellness. Our team is comprised of a number of professionals from all over the world with various backgrounds, skills, and perspectives. However, one of the things we all have in common is our passion and devotion to revolutionizing mental healthcare.


Headshot of founder Will Van Derveer, MD

Will Van Derveer, MD


Will Van Derveer, MD is co-founder of Integrative Psychiatry Institute (IPI), along with friend and colleague Keith Kurlander, MA. He co-created IPI as an expression of what he stands for. First, that anyone can heal, and second that we medical providers must embrace our own healing journeys in order to fully command our potency as healers. Dr. Van Derveer spent the last 20 years innovating and testing a comprehensive approach to…
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Headshot of founder Keith Kurlander, MA, LPC

Keith Kurlander, MA, LPC


Keith Kurlander, MA, LPC is the Co-founder of the Integrative Psychiatry Institute and the Integrative Psychiatry Centers. He has practiced integrative psychotherapy for over a decade. After years of treating highly complex patients, as well as a personal journey of overcoming complex mood-related issues, he turned toward integrative psychiatric practices as a key component to achieving mental health…
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Kelly Thooft, MBA


Kelly Thooft serves as the Chief Operating Officer and Chief Financial Officer for the Integrative Psychiatry Institute (IPI) and the Integrative Psychiatry Centers (IPC). She brings a broad expertise in supporting businesses from startups to large global enterprises undergoing accelerated growth, transformation, and change. Prior to joining IPI and IPC, Kelly partnered with business leaders across various industries…
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Program Development & Student Success

Michelle Flowers, MD

Course Director – Integrative Psychiatry Fellowship

Michelle Flowers, MD is a board-certified child, adolescent and adult psychiatrist who is passionate about helping people embrace and enhance meaning in their lives. In her more than fifteen years of experience as a private practice psychiatrist, she has focused on empowering individuals, couples and families as collaborators on their personal journeys. Dr. Flowers believes in an…
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Jaime Davila, MA, LPC

Course Director – Psychedelic-Assisted Therapy Training

Jaime received his Master of Arts in Counseling from Regis University and is a Licensed Professional Counselor in the state of Colorado. Originally Born in Puerto Rico, and raised in a military family, Jaime has spent time in Europe, Central America, and many states in the US. He brings a unique blend of interpersonal, analytic and technical skills to his healing work and also provides services in…
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Sara Gael, MA, LPC

Lead Instructor – Psychedelic-Assisted Therapy Training

Sara is a transpersonal psychedelic therapist and teacher. She has worked as a therapist for the Phase 2 and 3 clinical trials for MDMA-assisted therapy for PTSD sponsored by the Multidisciplinary Association for Psychedelic Studies (MAPS). Sara served as the Director of the MAPS Harm Reduction department from 2016-2020 and continues to develop curriculum and training as…
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Wilhelmina De Castro, LCSW

Diversity, Equity & Inclusion Consultant – Psychedelic-Assisted Therapy Training

Wilhelmina De Castro, LCSW (She/They) is trained in KAP (Ketamine Assisted Psychotherapy) through PRATI (Psychedelic Research and Training Institute) and MDMA Assisted Psychotherapy through MAPS (Multidisciplinary Association of Psychedelic Studies. In addition to supporting IPI with building DEI initiatives, Wilhelmina works as PRATI’s KAP Training Scholarship Program…
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Jaime Dias Delgado, LCSW

Diversity, Equity & Inclusion Consultant – Psychedelic-Assisted Therapy Training

Jaime Dias Delgado, LCSW (he, they) is a Culture & Identity consultant and trauma therapist with a practice rooted in liberation psychology. Jaime received an MSW from Fordham University and subsequently worked in professional-level foster care, intimate partner violence, youth gender and sexuality education, elementary education curriculum development and student accessibility…
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Rohini Kanniganti, MD

Physician Team Lead – Psychedelic-Assisted Therapy Training

Rohini Kanniganti, MD, MSPH, HMDC is a Boulder based Board Certified Family Physician. Dr. Kanniganti graduated from Penn State University with a Bachelor of Science in Chemistry, amazed at the mystery of atoms and energy levels. She then graduated from the University of North Carolina at Chapel Hill with a Master of Science in Public Health and a Doctor of Medicine, with her mantra…
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Katie Markley, MA, LPC, LAC

Director of Psilocybin Retreats

Katie Markley is a transpersonal therapist with over 11 years of experience working with adults in private practice. She is trained in somatic trauma work as well as art therapy from Naropa University. Passionate about altered states medicine work, Katie has witnessed their capacity to facilitate deep healing. She draws experience from her work as a Ketamine-Assisted Therapist and member of the…
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Blakely Saucier

Program Director – All Programs

Blakely Saucier received her BFA in Theatre Design and Technical Production from the University of Memphis, and spent the first ten years of her career working as a Stage Manager, Lighting Designer, Program Manager, and Artistic Director for both professional and youth theatre companies. Equipped with a passion for plant medicine, community engagement, and creative…
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Shelby Shaw

Director of Student Engagement – All Programs

Shelby has worked as a researcher, educator, and leader in the fields of higher education, community education, and K-12 education for the past fifteen years. Shelby has a diverse background in the field of education: specializing in transformative pedagogy with underserved populations and having taught in a variety of arenas, including public schools, community organizations…
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Erin Vangilder

Director Student Success – All Programs

A lifetime ago, Erin received a BA in psychology and a double minor in holistic health & wellness, and nutrition. She is a certified health coach, yoga, breath, and meditation instructor, and a self-proclaimed food nerd. A plant-fueled human, she’s a firm believer in seasonal, organic, real food. This naturally makes her an advocate against cruelty and abuse of any kind to animals, people, and nature…
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Jay Thooft

Director of Group Engagement – All Programs

Jay serves at the Director of Group Engagement with IPI overseeing the enrollment for the Psychedelic Assisted Therapy Training Program. Jay works with individual students as well as large group practices, hospital systems, and behavioral health clinics to get their clinicians up to speed on Psychedelic Assisted Therapy. Jay holds a Masters of Arts degree in…
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Operations & Marketing

Tonya Dove

Director of People, Talent, and Culture

Tonya serves as the Director of People, Talent, and Culture at IPI. She brings 20 years of experience in human resources, talent acquisition, social services, marketing, and community development. She specializes in building teams and processes for start-ups and companies in hyper-growth around the country. She leads through her passion for technology, employee experience…
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Mackenzie Ray

Operations Manager

Mackenzie Ray is the Operations Manager for Integrative Psychiatry Institute. She is driven by her passion for people, community and team. With over fifteen years’ experience in operations, people and talent, she’s dedicated to being a vital part of growing a company from the start to large scale productions. She is most comfortable wearing many hats and dedicated to…
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Denise Rivers-Nickelberry

Director of Marketing

Denise Rivers-Nickelberry serves as the Director of Marketing for IPI. She holds a Bachelor’s degree in journalism and is currently finishing up her Masters in Management & Leadership. As both a creative and analytical thinker, she enjoys creating and implementing marketing strategies that build brand awareness. She has a true passion for marketing and…
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